Mackville is located in Washington county Kentucky with a geographic area of 0.4 square miles. The total population in Mackville is 244 with 47.5% male and 52.5% female. Children under age 5 represent 0.0% of the population, under age 18 equal 44.7% of the population and over age 65 is 14.3% of the population. The median household income is $47,292, per capita income is $24,001. There are a total of 69 housing units with 73.9% owner occupied. Education includes 30.4% of residents that are high school graduates and 37.7% with a bachelor's degree or higher. The average temperature in Mackville in the summer is 76 degrees, and in the winter 36 degrees.